L-cystein
  • L-cysteinL-cystein

L-cystein

L-cystein brukes hovedsakelig innen medisin, kosmetikk, biokjemisk forskning; brukes i brødmaterialer for å fremme dannelsen av gluten og fremme gjæring, mugg og forhindre aldring. Brukes i naturlig juice for å forhindre oksidasjon av vitamin C og forhindre at juice blir brun. Produktet har avgiftningseffekt, kan brukes til akrylnitrilforgiftning, aromatisk acidose.

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L-cystein


L-cystein CAS:52-90-4


L-cystein Chemical Properties

MF: C3H7NO2S

MW: 121,16

Smeltepunkt: 220 ° C (dek.) (Lys)

Alfa: 8,75º (c = 12, 2n hcl)

Kokepunkt: 293,9 ± 35,0 ° C (forutsagt)

Tetthet: 1,197 (estimat)

Brytningsindeks: 8,8 ° (c = 8, 1 mol / l hcl)

Løselighet H2O: 25 mg / ml

Pka: 1,92 (ved 25â „ƒ)

PH: 4,5-5,5 (100 g / l, H2O, 20â „ƒ)

optisk aktivitet: Optisk rotasjon: + 8 ° til + 9 ° (c = 5, 1 N HCl, 20 ° C).

Vannløselighet: 280 g / L (25ºC)


L-cystein CAS:52-90-4 Specification:

Utseende

Hvite krystaller eller krystallinsk pulver

Spesifikk rotasjon [Î ±] D 20

+ 8,3 ° - + 9,5 °

Overføring

â ‰ ¥ 95,0%

Klorid (Cl)

â ‰ ¤0,04%

Ammonium (NH4)

â ‰ ¤0,02%

Sulfat (SO4)

â ‰0,03%

Jern (Fe)

â ‰ ¤10 ppm

Tungmetaller (pb)

â ‰ ¤10 ppm

Arsen (As2o3)

â ‰ ¤1 ppm

Andre aminosyrer

Kromatografisk: Ikke påviselig

Tap ved tørking

â ‰ ¤0,5%

Rester ved tenning

â ‰ ¤0,1%

Analyse

98,0 - 101,0%


L-cystein CAS:52-90-4 Introduction:

L-cystein is a common amino acid in the body. It is one of the sulfur-containingα-amino acids. It is purple when exposed to nitroprusside (developed due to SH). It is present in many proteins and glutathione, and can form insoluble with Ag +, Hg +, Cu + and other metal ions Mercaptide. That is, R-S-M′, R-S-M″-S-R (M′, M″are each monovalent and divalent metals). Molecular formula C3H7NO2S, molecular weight 121.16. Colorless crystals. Soluble in water, ethanol, acetic acid and ammonia [1]

L-cystein has many uses in food processing. It is mainly used in baked products as an essential ingredient for dough improvers. L-cysteine is a reducing agent, it can promote the formation of gluten, reduce the time required for mixing and the energy required for medicinal purposes. Disulfide bonds weaken the structure of the protein, so the protein stretches out


L-cystein CAS:52-90-4 Function:

1.L-cystein  has effective detoxification.

2.L-cystein can effectively prevent and treat radiation injury.

3.L-cystein can remove the skin melanin itself, change the nature of the skin itself.

4.L-cystein can improve the symptoms of inflammation and skin allergies.

5.L-cystein on horny skin disease is also effective hypertrophy.

6.L-cystein has a function to prevent biological aging.

7.L-cystein  is a kind of natural amino acid, has many uses in food processing, it is mainly used for baking products, as a necessary component of dough improver

8.L-cystein is a kind of reductant, it can promote the formation of gluten, reduce the time needed for mixing and the energy required for medicinal.


L-cystein CAS:52-90-4 Application:

L-cystein is widely used in fields of medicine, food processing, biological study, materials of chemical industry and so on. It’s used as raw materials for manufacturing N-Acetyl-L Cysteine, S-Carboxymethyl-L Cysteine, and L Cysteine base, etc. Used in the cure of liver disease, antioxidant and antidote are a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting aging. Also used in cosmetic.

1.L-cystein has an effective detoxification.

2. L-cystein can effectively prevent and treat radiation injury.

3. L-cystein can remove the skin melanin itself, change the nature of the skin itself, the skin becomes natural whitening. It is a kind of ideal natural whitening cosmetics.

4.L-cystein can improve the symptoms of inflammation and skin allergies.

5.L-cystein on horny skin disease is also effective hypertrophy.

6. L-cystein has a function to prevent biological aging.

7. cystein er en slags naturlig aminosyre, har mange bruksområder i matprosessering, den brukes hovedsakelig til bakeprodukter, som en nødvendig komponent av deigforbedrer

8. cystein er en slags reduksjonsmiddel, det kan fremme dannelsen av gluten, redusere tiden som trengs for blanding og energien som kreves for medisiner, cystein ved å endre proteinmolekylene og proteinmolekylene mellom den interne disulfidbindingen, svekke strukturen til protein, dette proteinet strekkes.




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